I had a heart attack on 4/30, wAS HOSPITLIZED FOR FOR FOUR DAYS. . upon returning home I was extremely tired, used a walker, prepared my meals and rested. now I was told I could drive but only short distance. this week. I was an active person, walked 10 blocks 5 days a week, followed a heart healthy diet, took heart meds, managed a low sodium diet. How long does it take to return before I can return to a similar life style?